dragster physics, you think your car is fast? Hahahaa!

WOLFGANGSTA

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Sorry if this is a repost. I did some searches and didn't find anything on this. A friend emailed this to me and I thought it was some pretty interesting reading.

Say you are driving the average $140,000 Lingenfelter "twin-turbo" powered Corvette Z06. Over a mile up the road, a Top Fuel dragster is staged & ready to launch down a quarter mile strip as you pass. You have the advantage of a flying start. You run the 'Vette hard up through the gears and blast across the starting line and past the dragster at an honest 200 mph. The 'tree' goes green for both of you at that moment. The dragster launches and starts after you. You keep your foot down hard, but you hear an incredibly brutal whine that sears your eardrums and within 3 seconds the dragster catches and passes you. He beats you to the finish line, a quarter mile away from where you just passed him. Think about it, from a standing start, the dragster had spotted you 200 mph and not only caught, but nearly blasted you off the road when he passed you within a mere 1320 foot long race course.


* One Top Fuel dragster 500 cubic inch Hemi engine makes more horsepower than the first 4 rows at the Daytona 500.

* Under full throttle, a dragster engine consumes 11.2 gallons of Nitro-methane per second; a fully loaded 747 consumes jet fuel at thesame rate with 25% less energy being produced.

* A stock Dodge Hemi V8 engine cannot produce enough power to drive the dragster supercharger.

* With 3000 CFM of air being rammed in by the supercharger on
overdrive, the fuel mixture is compressed into a near-solid form before ignition. Cylinders run on the verge of hydraulic lock at full throttle.

* At the stoichiometric 1.7:1 air/fuel mixture for nitromethane the
flame front temperature measures 7050 degrees F.

* Nitromethane burns yellow. The spectacular white flame seen above the stacks at night is raw burning hydrogen, dissociated from atmospheric water vapor by the searing exhaust gases.

* Dual magnetos supply 44 amps to each spark plug. This is the output of an arc welder in each cylinder.

* Spark plug electrodes are totally consumed during a pass. After way, the engine is dieseling from compression plus the glow of exhaust valves at 1400 degrees F. The engine can only be shut down by cutting the fuel flow.

* If spark momentarily fails early in the run, unburned nitro builds up in the affected cylinders and then explodes with sufficient force to blow cylinder heads off the block in pieces or split the block in half.

* In order to exceed 300 mph in 4.5 seconds dragsters must accelerate an average of over 4G's. In order to reach 200 mph well before half-track, the launch acceleration approaches 8Gs.

* Dragsters reach over 300 miles per hour before you have completed reading this sentence.

* Top Fuel Engines turn approximately 540 revolutions from light to light.

* Including the burnout the engine must only survive 900 revolutions under load.

* The redline is actually quite high at 9500rpm.

* The bottom line: assuming all the equipment is paid off, the crew worked for free, and for once, NOTHING BLOWS UP, each run costs an estimated $1,000.00 per second.

The current Top Fuel dragster elapsed time record is 4.441 seconds for the quarter mile (10/05/03, Tony Schumacher). The top speed record is 333.00 mph. (533km/h) as measured over the last 66' of the run (09/28/03 Doug Kalitta).

That is acceleration
 

Slider

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Euphoric One said:
I won't say it...
OOOO OOOOO MEEE MEEE (raising my hand as high as I can like a little child in school) ...teacher> " Yes Brad....Go ahead.."..................(big gasp of air)......

"REPOOOOOOOOOOST"

:thumbsup:
 

Riddla

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:bs: it cant outrun a Terminator :poke:

:-D
 

Thursday

Tu ne cede malis
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I dont know about this,

"Under full throttle, a dragster engine consumes 11.2 gallons of Nitro-methane per second; a fully loaded 747 consumes jet fuel at thesame rate with 25% less energy being produced."

I dont know a 11 gallons a second is pretty crazy, but 25% less efficency. How big are the fuel tanks on a 747???
 
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UCBeau

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Thursday said:
I dont know about this,

"Under full throttle, a dragster engine consumes 11.2 gallons of Nitro-methane per second; a fully loaded 747 consumes jet fuel at thesame rate with 25% less energy being produced."

I dont know a 11 gallons a second is pretty crazy, but 25% less efficency. How big are the fuel tanks on a 747???
tens of thousands of gallons. fuel flow on commercial jetliners is measured in GPH or PPH. i think Jet-A weighs ~6 lbs/gallon
 

LIGHTNING LARRY

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Slider said:
OOOO OOOOO MEEE MEEE (raising my hand as high as I can like a little child in school) ...teacher> " Yes Brad....Go ahead.."..................(big gasp of air)......

"REPOOOOOOOOOOST"

:thumbsup:

REPOST POLICE SUCK THE BUTT! :burn:
 

BooRail85

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WOW! I have read something like this before, but not this exact mock up.. good find!

screw the repost police! Not everyone has seen everything!

some people are on the internet WAY too much.
 

Codes

ROLL PRINCE ROLL!!!!
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I still don't understand why people come into threads that they know are repost, just to point out that they are repost :shrug:

I think drag racing is one of the most entertaining motor sports right now, even for people with short attention spans its alright (4ish seconds a race doesnt give you much time to lose interest). One thing I miss about Houston was going to baytown to watch the races.
 

Silver2003Cobra

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on my ship, with LM2500's (gas turbine version of engines on a 747, the CF6) at flank speed, we consume approx 6000 gph of fuel, 100 gallons of fuel a minute and 1.6 gallons of fuel a second.. but we make alot more than 7000 hp using it.. at that speed were making approx 106,000 hp, from 4 engines...
 

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